Get UK Sti to rev to 8k like JDM
17 September 2015, 03:11 PM
#1
Scooby Regular
Thread Starter
Get UK Sti to rev to 8k like JDM
Would it be as easy as bolting on the JDM heads if you could get a pair along with a remap of course ? Or are you just as well buying upgraded vales springs & cams etc ??
2003 Blobeye STI
2003 Blobeye STI
17 September 2015, 03:25 PM
#3
Scooby Regular
Thread Starter
ah so you would require the twin scroll manifold and turbo at a minimum.
what about on a Td05 20g ??
with a larger more capable turbo would it then be just a case of bolting on the JDM heads ?
what about on a Td05 20g ??
with a larger more capable turbo would it then be just a case of bolting on the JDM heads ?
17 September 2015, 03:35 PM
#4
17 September 2015, 03:57 PM
#6
Scooby Regular
Thread Starter
just pisses me off i can see 8k on my tacho but never reach it 
so what i gather is on stock uk turbo forget it.
however if i got a td05 20g and a pair of jdm heads i would achieve it ?
would i still be able to run unequal length manifolds ?
so what i gather is on stock uk turbo forget it.
however if i got a td05 20g and a pair of jdm heads i would achieve it ?
would i still be able to run unequal length manifolds ?
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17 September 2015, 04:04 PM
#9
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Thread Starter
18 September 2015, 08:39 PM
#16
At this point, I'd like to know WHY you want to do this? What's the point? What do you hope to gain?
I mean, seriously, the car performs. The JDM 8k rev limit cars aren't appreciably faster.
If you want a screamer, trade it against an Integra Type R.
I mean, seriously, the car performs. The JDM 8k rev limit cars aren't appreciably faster.
If you want a screamer, trade it against an Integra Type R.
18 September 2015, 08:45 PM
#17
Exactly! What's wrong with torque? Just run more boost!
18 September 2015, 09:49 PM
#19
Scooby Regular
Thread Starter
Aha. Mates have hondas they sound good but no torque. Thot it would be a best of both worlds. Wider powerband if not higher figures.
18 September 2015, 09:55 PM
#20
Scooby Regular
18 September 2015, 10:23 PM
#22
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Thread Starter
I have a frount mount a fuel pump and an remap by andy forrest. Running approx350/350. Just liked the idea of more revs. I get tht turbos arnt very effective at high revs and also the extra stresses. Just curious as to what is required n what is the best way to achieve it. Suppose to widen powerband could get a better spooling setup. But faster spooling turbos dont get power i believe
18 September 2015, 10:34 PM
#23
Scooby Regular
I have a frount mount a fuel pump and an remap by andy forrest. Running approx350/350. Just liked the idea of more revs. I get tht turbos arnt very effective at high revs and also the extra stresses. Just curious as to what is required n what is the best way to achieve it. Suppose to widen powerband could get a better spooling setup. But faster spooling turbos dont get power i believe
18 September 2015, 10:44 PM
#24
As always there are many ways to skin a cat, also depends what you're after and what the care is being used for.
My personal preferences are handling and braking, it's amazing what can be done with a well sorted chassis and good brakes.
Just depends what floats your boat, I'm not a power junkie anymore, I'm more into lines, carrying speed and hard late braking.
I don't think more power is the be all and end all of a faster car.
Power is useless without the ability to take advantage of it, in anything but a straight line.
My personal preferences are handling and braking, it's amazing what can be done with a well sorted chassis and good brakes.
Just depends what floats your boat, I'm not a power junkie anymore, I'm more into lines, carrying speed and hard late braking.
I don't think more power is the be all and end all of a faster car.
Power is useless without the ability to take advantage of it, in anything but a straight line.
19 September 2015, 06:58 AM
#25
It's always a play off between power and spool, 2.0 isnt a good place to start really due to it not having the low down grunt of a 2.5. Only real way to expand the power band after a certain amount of power is put a bigger engine in. aka turbo gets bigger, spool gets slower
It's horses for courses though, I like the sense of urgency and also prefer not to go too far above a ton to get my kicks, 40 to 90 is plenty fast enough on the types of roads I like to drive, the fun is in hanging the back end out a little and putting the car where you want it to be, once it's in 3rd it's not so much about power as it is about carrying speed, which goes back to handling and set up.
Which is why cars like the Clio and Megane do so well against cars with twice the BHP.
19 September 2015, 05:37 PM
#26
I have a frount mount a fuel pump and an remap by andy forrest. Running approx350/350. Just liked the idea of more revs. I get tht turbos arnt very effective at high revs and also the extra stresses. Just curious as to what is required n what is the best way to achieve it. Suppose to widen powerband could get a better spooling setup. But faster spooling turbos dont get power i believe
Do you already have a Harvey trick up-pipe?
If not, contact AS Performance for a chat.
Mine is producing 1bar of boost by 2800rpm.
20 September 2015, 12:06 AM
#27
Scooby Regular
But with the 2.5L there's no sense of urgency and they don't rev out in the same way a 2.0L does, 2.5L's are by no means slow because when you look down at the speedo you're tearing up the road pretty rapidly, but it's a very linear power delivery with a wave of torque.
It's horses for courses though, I like the sense of urgency and also prefer not to go too far above a ton to get my kicks, 40 to 90 is plenty fast enough on the types of roads I like to drive, the fun is in hanging the back end out a little and putting the car where you want it to be, once it's in 3rd it's not so much about power as it is about carrying speed, which goes back to handling and set up.
Which is why cars like the Clio and Megane do so well against cars with twice the BHP.
It's horses for courses though, I like the sense of urgency and also prefer not to go too far above a ton to get my kicks, 40 to 90 is plenty fast enough on the types of roads I like to drive, the fun is in hanging the back end out a little and putting the car where you want it to be, once it's in 3rd it's not so much about power as it is about carrying speed, which goes back to handling and set up.
Which is why cars like the Clio and Megane do so well against cars with twice the BHP.
20 September 2015, 08:06 AM
#28
A Tuned 2.5L with an SC36 is slightly better and does pick up way sooner, but still won't rev out like a JDM does, the one I have personal experience of still couldn't hold a candle to my Type R @330 bhp with VF34 though and that had 360bhp/370ftb.
Like I said before best and cheapest way is just to go buy a remapped JDM STI and the op will get exactly what he's after, and a the real bonus, a rear wiper.
21 September 2015, 05:01 PM
#30
Scooby Regular
His power band is crap because the standard STI is crap, as he's discovered noting much happens until 4k then it hit's the wall and starts tailing off a little over 2k later, which is why so many owners get rid of the turbo and palm them off onto WRX owners that don't know any better. And they're even worse on a WRX because there's no AVCS to help.
A Tuned 2.5L with an SC36 is slightly better and does pick up way sooner, but still won't rev out like a JDM does, the one I have personal experience of still couldn't hold a candle to my Type R @330 bhp with VF34 though and that had 360bhp/370ftb.
Like I said before best and cheapest way is just to go buy a remapped JDM STI and the op will get exactly what he's after, and a the real bonus, a rear wiper.
A Tuned 2.5L with an SC36 is slightly better and does pick up way sooner, but still won't rev out like a JDM does, the one I have personal experience of still couldn't hold a candle to my Type R @330 bhp with VF34 though and that had 360bhp/370ftb.
Like I said before best and cheapest way is just to go buy a remapped JDM STI and the op will get exactly what he's after, and a the real bonus, a rear wiper.
OK forged build with sc46+ and single avcs hawk heads lol